Function

Button

Switch the output

Press the top middle button (2)

Mute / Unmute

Press the bottom middle button (5) / Press the button again

Switch the channel

Next channel in descending order

Press the top left button (1)

Next channel in ascending order

Press the top right button (3)

Control the sound level

Increase sound level

Press the bottom right button (4)

Reduce sound level

Press the bottom left button (6)